Răspunsuri

2014-10-21T13:21:31+03:00
A+b=36
a-b=8
a=8+b
8+b+b=36
2b=36-8
2b=28
b=28:2=14
a+14=36
a=36-14=22
v:22+14=36
22-14=8
2014-10-21T13:30:28+03:00
a+b=36
a-b=8
---------------
a+b+a-b=36+8
2a=44
a=44:2
a=22

a-b=8
22-b=8
b=22-8
b=14